baber/WOPTO huggingface dataset:
Patent GB-783374-A (GB)
Title: Improvements in and relating to non return valves for liquid pumps
IPC: F04D15/00
Filed: 1955-08-23
Abstract: 783,374. Fluid-actuated valves. KONINKLIJKE MACHINEFABRIEK GEB. STORK & CO., N.V. Aug. 23, 1955 [Aug. 28, 1954], No. 24266/55. Class 135. A non-return valve fitted in the discharge pipe of a centrifugal pump comprises a valve member 7 guided for axial movement in the valve casing by casing projections 8 and by a pin 9 slidable in a guide 10 and urged by a spring 11 to engage a seat 12. The member 7 also carries a pin 17 which slides with clearance in an inlet tube 14 of an overflow pipe 13. When the valve 7 is closed, flow takes place around the pin and through the pipe 13 to provide a restricted circulation of liquid through the pump to prevent undue heating thereof.
Patent GB-408205-A (GB)
Title: Improvements in jacquard mechanism
IPC: D04C5/02
Filed: 1932-08-31
Abstract: 408,205. Jacquards. SCHULER, A. F., 2127, West Venango Street, Philadelphia, U.S.A. Aug. 31, 1932, No. 24298. [Class 142 (i).] In a Notting- ham lace machine, wherein a wide piece or several strips of lace curtain are controlled by a single or double jacquard mechanism situated above the centre of the machine, the harness cords pass through a rectifying grid 20, which is lowered before radiating to the control jacks when the cords are raised thereby taking up slack. Guide bars 11 carrying the lifting grid 12, 13, are raised and lowered by lever-mechanism 25, 28, 29 &c., and the grid 20, which can slide freely on the bars 11 is connected by links 30 to levers 31 pivoted at 32 to bracket 33 fast on the bars 11, the levers being pivoted at 36 to links 37 pivoted at 38 to the jacquard frame, whereby the grid 20 is lowered when the lifting grid 12 13 is raised and vice versa. Specification 398,591, [Group VIII], is referred to.
Patent GB-189422-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04M3/12
Filed: 1922-09-08
Abstract: 189,422. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Stehlik, R. F.). Nov. 22, 1921, [Convention date]. Automatic exchange systems.-Relates to improved circuit arrangements for enabling a line switch or group selector to resume its hunting movement if the first idle trunk signal is defective. Line switch C, Fig. 1. The switching relay 14 energizes a slow-release relay 16, which remains energized for a moment after the release of line relay 15, so that if the seized trunk is defective and fails to return ground over the test wiper 31 the consequent relapse of the switching relay momentarily closes a circuit 21, 25, 28 to cause the magnet 17 to advance the wipers to the next set of terminals. Group selector D, Fig. 1. An additional relay 47 is provided, which is sluggish both to energize and to relapse. This relay, which is connected at the first vertical step in parallel with the release relay 46, becomes energized at the termination of the impulses, locks itself up, and connects the test wiper to the circuit of the stepping relay 48, which controls the rotary magnet 70 in the usual way to hunt for an idle trunk, after which the switching relay 49 is energized and relays 45, 46, 47 successively relapse. In the interval between the relapse of relays 46, 47 the stepping relay 48 is energized over its upper winding. If the seized trunk is defective and fails to return ground over the test wiper 77, the switching relay 49 relapses before relay 47 and immediately re-energizes relays 45, 46, closing a circuit 57, 50, 66 to energize magnet 70, which steps the wipers to the next set of terminals, and the normal hunting operation is resumed until another idle trunk is found. Group selector F, Fig. 2. Since this is an incoming trunk selector and has not got to earth an incoming test wire, a somewhat simpler arrangement is possible, involving an additional relay 127 which is slow to energize but not to relapse. This relay, which is in parallel with the release relay 126, is de-energized by the first impulse and becomes re-energized after the last impulse, and connects the test wiper to the circuit of the stepping relay 128. The energization of the switching relay 129, when an idle trunk is found, de-energizes relays 125, 126, 127. If the seized trunk is defective the relapse of relay 126 is followed by that of relay 129, which immediately re-energizes relays 125, 126, and a circuit 149, 130, 137, 143 is closed to energize the stepping relay 128. A moment later the relay 127 also becomes energized and closes a circuit 149, 180, 144 for the rotary magnet 146, and hunting is resumed.
Patent GB-1415280-A (GB)
Title: Apparatus for continuously cooling hot-rolled bar
IPC: B21B45/02
Filed: 1974-06-03
Abstract: 1415280 Continuous cooling apparatus HOOGOVENS IJMUIDEN BV 3 June 1974 [4 June 1973] 24411/74 Heading C7N Bar, rod or wire is passed continuously through a channel or tube supplied with water through inlets in its vertical side walls, the ends of the water body in the vessel being formed by downwardly directed high-pressure water jets. As particularly described channel 5 is supplied through manifold #23 and inlets 8, the quench bath being contained between inwardly inclined jets 13, 14, 15, 16 which discharge through slots 17, 18, 19, 21, 22. One or more of these cooling units may be installed immediately after a shear in the run out table of the rolling mill.
Patent GB-593908-A (GB)
Title: Improvement in metallic abrasive composition of matter
IPC: C09K3/14
Filed: 1944-12-06
Abstract: In an abrasive composition in which abrasive particles, e.g., diamond fragments, are dispersed in a metal matrix, the matrix is formed of a mixture of powdered sintered metals comprising a fractional percentage of one or more of copper, silver, and gold, a small fractional percentage of indium, from 3 to 10 per cent. of manganese, nickel, or a mixture thereof, and the remainder of iron containing the eutectoid percentage of carbon.  The copper, silver or gold increases corrosion resistance of the iron matrix, the indium prevents the accumulation of abrasive-removed particles in the interstices between the abrasive grains, and the manganese or nickel reduces the shrinkage of the product, thus reducing the moulding-pressure, and improves the strength and ductility.  The copper, silver, or gold is used in an amount up to 1 per cent., but preferably a mixture of approximately .1 per cent. silver and .1 per cent. of gold is used.  The indium is present up to about .1 per cent., while the manganese or nickel may be 5 per cent.  The iron and carbon are preferably present in the form of carbonyl iron power, all of which should pass 400 mesh.  The manganese should pass 200 mesh, and the copper, silver, or gold should pass 200-300 mesh.  The metal powders are mixed in a ball mill, and the diamond fragments, between 100 and 120 mesh size, and preferably coated with a metal of the platinum group, such as rhodium, are mixed in.  The mixture is pressed into a mould and then gradually heated in a non-oxidising atmosphere to about 750 DEG C, the mould being coated with a refractory material such as silica dust, graphite, alumina, or the like to facilitate removal of the product.  After sintering, the mass is quenched.  The ratio of diamond to metal may be 1 : 3. Specification 582,808 is referred to.
Patent GB-508917-A (GB)
Title: Improvements in or relating to lithographic inks and methods of lithographic printing
IPC: C09D11/02
Filed: 1938-08-19
Abstract: 508,917. Synthetic resin compositions. STEVENS, A. H. (Interchemical Corporation). Aug. 19, 1938, No. 24445. Drawings to Specification. [Class 2 (iii)] [Also in Groups XVI and XV] The binder for a lithographic ink consists of a water-repellent synthetic resin such as a rosin ester, a polymerized hydrocarbon, a modified alkyd resin, a phenolic resin, or the like. A plasticizer which is also water-repellent may be added ; a vegetable or animal oil such as peanut, soya bean, linseed, corn or fish oil, an ester such as methyl abietate or tricresyl phosphate, or a plastic synthetic resin such as an oil-modified alkyd, may be employed. According to examples, colouring-matter is dispersed in a mixture of (a) paraffin hydrocarbons, ester gum and an oil-modified alkyd resin prepared by heating phthalic anhydride, glycerol, linseed oil fatty acids and linseed oil ; (b) paraffin hydrocarbons, ester gum, and peanut oil ; (c) paraffin hydrocarbons, peanut oil and a modified maleic anhydride resin prepared by reacting gum rosin with maleic anhydride to form the diene addition product, and esterifying the resultant with glycerol.
Patent GB-615870-A (GB)
Title: Improvements in rotatable flexible tube connections for dust aspirators and the like
IPC: A47L9/24
Filed: 1946-08-16
Abstract: 615,870. Tube joints. MALCHUS, J. A. C. Aug. 16, 1946, No. 24459. Convention date, July 7, 1942. [Class 99 (i)] A flexible tube connection for a dust extractor or aspirator consists of two sleeves rotatably mounted one within the other and having limited relative sliding movement, to which the tube is attached, the outer sleeve having resilient tongues formed at its end 13 and the inner sleeve 12 having an outwardly flared or conical end 14 adapted to co-operate with the tongues to clamp the connection in a mouthpiece 6 fitted in the lid 7 of the extractor, the connection also comprising a helical spring 8 arranged between the sleeves so as to tend to hold them out of clamping position (as shown) and allow relative rotation. The tongues are formed by making longitudinal cuts 1 in the sleeve. Stops for the spring are provided by an enlargement 15 on the outer sleeve, and a ring 10 abutting a rib 11 on the inner sleeve. By relatively sliding the sleeves against the action of the spring the flared end 14 can be brought into engagement with the tongues so that they are expanded against the wall of the mouthpiece 6 to which the connection is then locked. When the connection is unlocked it can be withdrawn as a unit from the mouthpiece by pulling the outer sleeve, the tongues not then being expanded and the flared end 14 being of such diameter that it will slide in the mouthpiece. For inserting the connection, the inner sleeve should be held.
Patent GB-507231-A (GB)
Title: Apparatus for determining the density of photographic film
IPC: G01J1/42
Filed: 1937-09-08
Abstract: 507,231. Capacitance measurements. LEIJONHUFVUD, A. S. Sept. 8, 1937, No. 24505. Void. Convention date, Sept. 8, 1936. [Class 37] [Also in Group XX] An apparatus for determining the density of photographic film, plates, and the like has an electric oscillation circuit including a condenser between the plates of which is introduced the photographic film, and a tuning device determining the change in the capacity of the condenser. The sender circuits include a thermionic valve 1 with anode 2, grid 3 and filament cathode 4, the plate circuit containing a tuning coil 8 and the primary coil 9 of a coupling transformer. The sender is controlled to give constant frequency. The secondary coil 10 is connected to the receiver R which comprises a thermionic valve 11 with electrodes 12, 13, 14, a testing condenser: 17 through which the film is passed and tuning condensers 19, 20. Indicator means connected between the coil 10 and the supply may comprise a telephone receiver, a glow discharge lamp or the like. The testing condenser consists of two metal plates of small area, suitable guiding means being provided for the film. Oscillations of high frequency are preferably used. In operation a blank film is first tested, the condenser 20 maintained at zero position and the condenser 19 adjusted to compensate for the change in the capacity of the condenser 17. The blank film is removed and the photographic film inserted, the condenser 20 being adjusted to bring the circuits into resonance. The adjustment of the condenser 20 is a measure of the density of the metal grains in the film. Alternatively, the tuning condensers may he connected in the sender circuit.
Patent GB-721932-A (GB)
Title: Improvements in or relating to flooring or the like
IPC: E04B5/19
Filed: 1952-10-01
Abstract: 721,932. Floors. TRAD, F. Oct. 1, 1952 [Jan. 24, 1952; July 12, 1952; July 12, 1952], No. 24599/52. Class 20 (4). In a floor &c. constituted by alternately disposed reinforced concrete ribs and rows of reinforced blocks the block reinforcement comprises a closed transverse frame embedded near the upper and lower surfaces with loops protruding into the ribs and overlapping those of the blocks of adjacent rows, and the rib reinforcement comprises longitudinal rods intersecting the loops. Hollow floor blocks 1 having an internal arch 4 and intermediate transverse walls 5 are grooved along one longitudinal edge of their upper wall, the grooves being filled with mortar when the floor is laid. A frame reinforcement 7 embedded in the block extends beyond the end walls as loops with a sloping upper portion forming recesses in which longitudinal reinforcements 8 are disposed for in situ concrete ribs 10 between the block rows. Lower reinforcements 9 pass through the loops. The block reinforcement may be laid in upper and lower grooves at the time of erection of the floor and may have transverse lugs or bars fitting into slots determining their exact position.
Patent GB-1462308-A (GB)
Title: Contact adhesives
IPC: C08G18/75
Filed: 1974-06-04
Abstract: 1462308 Contact adhesives BASF AG 4 June 1974 [5 June 1973] 24602/74 Heading C3R [Also in Division B2] A contact adhesive is prepared by mixing in the absence of a solvent, (a) 28 to 94% by weight of a polyol having a M.W. from 300 to 8000 and a hydroxyl number from 20 to 85 and (b) 5 to 60% by weight of an amorphous, thermoplastic, tackifier resin which has a softening point from 40 to 140 C. and a M.W. of 200 to 7500 and reacting the mixture, without the use of a solvent, with (c) 1 to 12% by weight of 3- isocyanato - methyl - 3,5,5 - trimethylcyclohexylisocyanate (isophorone diisocyanate), the percentages being based on the total weight of components (a), (b) and (c). The polyol (a) may be a polyester or more preferably a polyether polyol and is used in an amount which is preferably such as to provide an NCO/OH ratio of 0À8 to 1À2. The tackifier resin may be a terpene resin, balsam, rosin, hydrogenated rosin and esters of rosin or of hydrogenated rosin, esters of hydroabietyl alcohol, terpenephenol resins, alkylphenol resins, ketone resins, coumarone resins, indene resins, hydrocarbon resins, polyvinyl isobutyl ether, polyvinylacetate, vinyl acetate/vinyl laurate copolymers and polyolefins. It is particularly advantageous to use mixtures of different tackifier resins. The main applications are the manufacture of adhesive tapes, adhesive films and adhesive labels.
Patent GB-151163-A (GB)
Title: A combined clutch, variable-speed and differential gear
IPC: F16H3/56
Filed: 1919-10-08
Abstract: 151,163. Rouquet, C. Oct. 8, 1919. Variable-speed epicyclic gearing; balance gearing. - Two-speed epicyclic gearing for motor-vehicles is combined with a friction clutch and with balance gearing. A hollow driving-shaft 1 carries a spur gear 10 meshing with stepped planet gears 9, which also mesh with a gear 11 on a hollow shaft 12 secured to the balance-gear case 14. The carrier 7 of the gears 9 carries a brake drum 8 and a friction clutch member 6. When a clutch member 5 upon the shaft 1 engages the member 6, the gearing turns solid for high speed. when the clutch 5, 6 is disengaged and the drum 8 is held, the shaft 12 is driven at low speed. The casing 14 carries a brake drum 15, and the differentially-driven axles 19, 20 pass respectively through the shafts 12, 1 and through an extension 14<1> of the casing 14.
Patent GB-460156-A (GB)
Title: Electrical connectors
IPC: H01T13/04
Filed: 1935-09-05
Abstract: 460,156. Locking nuts. BOLTON, E. Sept. 5, 1935, No. 24761. [Class 89 (i)] [Also in Group XXXVI] A locking device for a nut 14 that secures the sheathing 12 of a cable to a coupling device consists of a spring ring 23 having a finger 20 passing through the nut into ratchet teeth formed as grooves 22 in the member 4 on which the nut screws.
Patent GB-1186285-A (GB)
Title: Copper Base Alloy
Inventor: MCLAIN CHARLES DONALD
IPC: C22C9/04
Filed: 1968-05-23
Abstract: 1,186,285. Copper alloys. OLIN MATHIESON CHEMICAL CORP. May 23, 1968 [June 26, 1967], No.24766/68. Heading C7A. Copper-base alloys having high strength and electrical conductivity consist, by weight, of Fe 1À5-3À5% P 0À01-0À15% Zn 0-03-0-2% optionally Al up to 0À07 % " Mn up to 0À08% Cu and impurities - balance. The alloys may be hot-rolled at 800‹ -1050‹ C., water spray quenched, and then cold-rolled to size in stages with intermediate anneals at 400‹ - 600‹ C.
Patent GB-1468596-A (GB)
Title: Gate valves
IPC: F16K3/30
Filed: 1974-06-05
Abstract: 1468596 Valves ACF INDUSTRIES Inc 5 June 1974 [11 June 1973] 24820/74 Heading F2V A gate valve has an expansible ported gate 28 formed from interfitting members 34, 36 cooperating with seats 60, 62 having annular portions 68 slidable in recesses in the valve housing 12 and projections 72 floatingly connected to spacers 78 via pins 88. The spacers 78 have an axial dimension at least 0À005 inch greater than that of gate 28 in the collapsed condition to ensure adequate clearance between the latter and seats 60, 62. Gate members 34, 36 have complementary V-shaped surfaces 40, 38 urged to the collapsed condition by springs 56 but relatively slidable to expand the gate by wedging action when the latter moves upwards or downwards towards the fully open or closed positions respectively. Lubricant passages (70, 71, Figs. 2, 3, not shown) are provided in seats 60, 62 and housing 12. Gate 28 is controlled by a hand wheel 32, the spindle 30 of which has a lug 52 held in a recess 50 in gate projection 48 by nut 54.
Patent GB-677546-A (GB)
Title: A new or improved method of manufacturing lighting fittings
IPC: F21S8/06
Filed: 1949-09-28
Abstract: 677,546. Lamp supports. HEATH, Ltd., I., HEATH, I. A., and BRADLEY, W. G. Sept. 28, 1950 [Sept. 28, 1949], No. 24838/49. Class 75(iii) The arms 16, Fig. 3, of a lighting fitting of the radial arm type and the supporting tube 10 are formed separately, preferably as die castings, and the arms 16 are hingedly connected to the tube 10 and held in their operative radial positions by a sleeve 18 slidable on said tube, whereby if the fitting is to be packed or stored the sleeve 18 is moved to release the arms 16 so that the latter may be tilted into positions substantially parallel with the tube 10 as shown in Fig. 2. Each arm 16 has a knuckle 16a engaging arcuate recesses in lugs 13a upstanding from the bottom plate 13, secured by a bolt 12 and a nut 14 to an abutment member 11 pinned to the lower end of the tube 10. The member 11 carries a resilient annular washer 11a which bears against the knuckles 16a when the fitting is assembled for use. An ornamental nut 15 is secured to the lower end of the bolt 12. The upper end of the tube 10 is provided with a suspension loop 101 and a shroud 21 adapted to be secured to or to form a ceiling rose. The outer ends 17b of the arms 16 may form the lower parts of incandescent lamp holders of the construction described in Specification 665,674, [Group XXXVI].
Patent GB-800578-A (GB)
Title: Method of producing fibre drums
IPC: B21D51/34
Filed: 1955-08-30
Abstract: 800,578. Making containers; jointing by stamping. KURZ, K. Aug. 30, 1955, No. 24923/55. Classes 83 (2) and 83 (4). [Also in Group XVII] A method of making cylindrical containers, the walls 7 of which are of fibre but which may be protected by metal end casings 2, comprises the use of dies 6 movable towards each other in the direction of a counter-mould 7 to form a circumferential indentation or groove 5 in the drum, near its bottom edge, and the use of an axially acting die 8 for exerting axial pressure on the rim of the drum while the indentation or groove 5 is being formed. The indentation 5 may be initially pre-pressed with the use of a first countermould and a second counter-mould 7 may then be used for the final pressing of the groove, an end disc 3 being gripped between the indentation 5 and a beaded edge 9 formed by the die 8. In a modification the bottom disc 3 may itself constitute a counter-mould. The disc 3 may be grooved near its outer edge and the end of the cylindrical casing may be beaded into this groove. The ends 3 may be of tin, plywood, or laminated glued paper.
Patent GB-637401-A (GB)
Title: Reducing reflection from glass surfaces
IPC: C03C15/00
Filed: 1947-09-11
Abstract: 637,401. Reducing surface reflection. RADIO CORPORATION OF AMERICA. Sept. 11, 1947, No. 24970. Convention date, Sept. 21, 1946. Drawings to Specification. [Class 97 (i)] To reduce reflection, the surface of a glass object is immersed in a solution of fluorsilicic acid supersaturated with silica to the extent of not more than three millimoles per litre, and maintained therein until a surface etching of the desired depth is attained. Such a process is said to form a skeletonised film on the glass. The treating solution may be prepared by treating a fluorsilicic acid solution with excess of precipitated silicic acid or hydrated silica, filtering and then diluting with water: this process gives a supersaturated solution since the solubility of silica decreases with a decrease in the concentration of fluorsilicic acid. A solution may also be prepared by dissolving a silica-containing glass in fluorsilicic acid. The amount of supersaturation is suited to the particular glass to be treated and may be decreased by adding sodium or potassium fluoride, or increased by adding H 3 B0 3 , NaOH or sodium silicate. The surface of the glass may be cleaned before treatment with a solvent for silica such as hydrofluoric acid or hot concentrated sodium hydroxide. The treating solution may be maintained at the desired strength over a period of time by the periodic addition of H 3 BO 3 . Specification 596,346 is referred to. The Specification as open to inspection under Sect. 91 states that a solution may also be prepared by digesting glass in a mineral acid such as sulphuric; hydrochloric or nitric acid to which has been added a small quantity of hydrofluoric acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-295847-A (GB)
Title: Improvements relating to builder motions for spinning, twisting, and similar machines
IPC: D01H1/36
Filed: 1927-09-22
Abstract: 295,847. Mackie & Sons, Ltd., J., and Mackie, J. P. Sept. 22, 1927. Building-motions. - In a building- motion which will permit the winding of parallel-built pirns in spinning, twisting, and similar machines, a builder shaft 20 is connected to an oscillating member 1 by a member 17 so that at one extremity of the oscillation the distance between the tangential contact point of the connecting-member with the builder shaft and the point of its connection with the oscillating member is substantially constant, and means is provided for displacing such point of connection. relatively to the pivot of the oscillating member at each strode, whereby the winding always commences at the same point at one end of the bobbins and each successive lift is shorter. As applied to a wet spinning-frame for flax, hemp, and the like a lever 1 is oscillated by mangle-wheel mechanism 4 and a chain 17 is connected to a stud 8 movable in an arcuate slot 7 in the lever struck from the tangential contact point of the chain 17 with the shaft 20 or a boss thereon as centre, so that the winding always commences from the bottom of the bobbin. A rack 9 depends from the stud 8 and engages a wheel 30 loosely mounted on the pivot pin of the arm 1 and keyed to a ratchet wheel 32, which is engaged by a pawl 42 carried by an arm 33 provided with a rod 40 slidable through a fixed support 49, so that, during each movement of the lever 1 to the left, the ratchet wheel is moved through a distance determined by the adjustment of the nuts 50, 51 and, by means of the rack and pinion gear, draws the stud 8 along the slot towards the pivot of the lever, thereby shortening each successive, lift.